C++ :: Unexpected SIGABRT At Return 0

I am working through Binary IO with objects and am running into a curious error.

The program executes perfectly until it hits the very end. At "return 0", the program fails. The debugger picks up SIGABRT when executing "return 0". This seems to me to indicate a deconstructor problem of some kind. However, I can't seem to find any deconstructor problems (I am fairly new at programming though).

If I comment out the following two lines:

"binaryio.read(reinterpret_cast<char *>(&studentNew1), sizeof(Student));"
"binaryio.read(reinterpret_cast<char *>(&studentNew2), sizeof(Student));"

then the program finishes exiting without error . . . . but the whole point is to be able to read from the binary file. With those two lines in the code, the program successfully reads from the file and outputs the objects to the console ,but fails at "return 0";

Here is the code:

#include <iostream>
#include <fstream>
#include "Student.h"
using namespace std;

void displayStudent(Student student) {
cout << student.getFirstName() << " ";

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